Personally, this hack needs more improvement. It's cool to recreate what the beta would have been like, but most of the levels were not good. Most of it left the original level design, just with small tweaks. 1-1 has obvious references to.. Well... 1-1. I've seen that 1-2 gets repeated in 1-4. 1-2 is even has references to 1-4. Also most of the levels BARLEY had changes. The Tower level is the same with no edits and so is 1-5, and the castle level. The only thing in the castle that is orginal is the remake of one of the beta videos where the 3D Goomba touches the SM64DS Mushroom and becomes a GODZILLA Goomba. Granted it appeared in the Forest World 4, but I digress. I also noticed glitches with the tilesets at times. It's all my opinion, so others please agree or not.
_________________________Let's Play:https://www.youtube.com/watch?v=TgH0SInZPmI
Honest Quality Rippers Needed!

Personally, this hack needs more improvement. It's cool to recreate what the beta would have been like, but most of the levels were not good. Most of it left the original level design, just with small tweaks. 1-1 has obvious references to.. Well... 1-1. I've seen that 1-2 gets repeated in 1-4. 1-2 is even has references to 1-4. Also most of the levels BARLEY had changes. The Tower level is the same with no edits and so is 1-5, and the castle level. The only thing in the castle that is orginal is the remake of one of the beta videos where the 3D Goomba touches the SM64DS Mushroom and becomes a GODZILLA Goomba. Granted it appeared in the Forest World 4, but I digress. I also noticed glitches with the tilesets at times. It's all my opinion, so others please agree or not.

I'll fix these bugs soon, if I would have enough time.

EDIT: Also, in the original Alpha (E3 2004) version, as seen in the trailer, the levels were very short and going in an infinite loop. (there's likely a debug menu to access other levels, but we'll never know). Also, there're only 4 levels: Grassland, Sunset, City, Castle.

I played the World 1. Quite interesting. I liked to play. The Mega Goomba froze on my flash card, but it worked in the emulator. It would be nice if this version would evolve into something new. For example, starting a new implementation of others Worlds... Have Positive thumb.
[]s -P

The music fits with the Grass and Sunset level, but the City level would probably be more suited with the Ghost House Theme.

Remember though, that while the music was to be used for multiplayer, at this point in development the multiplayer mode was full-blown co-op, meaning the music probably would have been used in single player mode too.

There isn't any evidence that "beta" MvsL mode was a co-op mode. It appears it was the same as final MvsL, but it was a race, and had more levels. And more interesting levels.
_________________________Will pay unspecified $ for NSMB beta.